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Blind Pneumatic Stowing in Voids in Abandoned Mines.

Authors
Sands-PF; Boldt-CMK; Ruff-TM
Source
MISSING :13 pages
Link
NIOSHTIC No.
10008394
Abstract
This U.S. Bureau of Mines report reviews the state of the art in blind pneumatic stowing of backfill in voids in abandoned coal mines. It contains a short history of the development of pneumatic equipment in mining and four recent case histories of blind pneumatic stowing. Limitations of pneumatic stowing in terms of equipment wear, costs, backfill material, and methodology are discussed, and some new procedures and designs are reviewed. A bibliography covering pneumatics in mining is included also. This report provides background for the preparation of a Bureau test program in which the variables affecting the efficiency of pneumatic backfilling will be studied using a full-scale surface test facility.
Publication Date
19900101
Document Type
IH; Information Circular;
Fiscal Year
1990
NTIS Accession No.
NTIS Price
Identifying No.
IC 9268
NIOSH Division
SRC;
Source Name
MISSING
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